Tripod



FIG. 1 is a front view of a tripod showing our new design in an open position;

FIG. 2 is a rear side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in the drawings depict portions of the tripod that form no part of the claimed design. 

CLAIM The ornamental design for a tripod, as shown and described. 